<template>
  <el-form class="login-form"
           status-icon
           :rules="loginRules"
           ref="loginForm"
           :model="loginForm"
           label-width="0">
    <el-form-item prop="username">
      <el-input size="small"
                @keyup.enter.native="handleLogin"
                v-model="loginForm.username"
                auto-complete="off"
                :placeholder="$t('login.username')">
        <i slot="prefix"
           class="icon-yonghu"></i>
      </el-input>
    </el-form-item>
    <el-form-item prop="password">
      <el-input size="small"
                @keyup.enter.native="handleLogin"
                :type="passwordType"
                v-model="loginForm.password"
                auto-complete="off"
                :placeholder="$t('login.password')">
        <i class="el-icon-view el-input__icon"
           slot="suffix"
           @click="showPassword"></i>
        <i slot="prefix"
           class="icon-mima"></i>
      </el-input>
    </el-form-item>
    <el-form-item prop="code">
      <el-row :span="24">
        <el-col :span="16">
          <el-input size="small"
                    @keyup.enter.native="handleLogin"
                    :maxlength="code.len"
                    v-model="loginForm.code"
                    auto-complete="off"
                    :placeholder="$t('login.code')">
            <i slot="prefix"
               class="icon-yanzhengma"></i>
          </el-input>
        </el-col>
        <el-col :span="8">
          <div class="login-code" v-loading="code.loading">
            <img 
              :src="code.src"
              class="login-code-img"
              @click="refreshCode"/>
          </div>
        </el-col>
      </el-row>

    </el-form-item>

    <el-form-item>
      <el-button type="primary"
                 size="small"
                 @click.native.prevent="handleLogin"
                 class="login-submit">{{$t('login.submit')}}</el-button>
    </el-form-item>
  </el-form>
</template>

<script>
import { mapGetters } from "vuex";
import {getCaptcha} from '@/api/system/user'

export default {
  name: "userlogin",
  data () {
    return {
      loginForm: {
        username: "123456",
        password: "123456",
        code: "",
      },
      checked: false,
      code: {
        loading: false,
        src: "",
        value: "",
        len: 5,
      },
      loginRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" }
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          { min: 6, message: "密码长度最少为6位", trigger: "blur" }
        ],
        code: [
          { required: true, message: "请输入验证码", trigger: "blur" },
          { min: 5, max: 5, message: "验证码长度为5位", trigger: "blur" },
        ]
      },
      passwordType: "password"
    };
  },
  created () {
    this.refreshCode();
  },
  mounted () { },
  computed: {
    ...mapGetters(["tagWel"])
  },
  props: [],
  methods: {
    async refreshCode () {
      this.code.loading = true
      try {
        var { data } = await getCaptcha()
      } catch (error) {
        throw error
      } finally {
        this.code.loading = false
      }
      this.code.src = data
    },
    showPassword () {
      this.passwordType == ""
        ? (this.passwordType = "password")
        : (this.passwordType = "");
    },
    async handleLogin () {
      await this.$refs.loginForm.validate();
      const loading = this.$loading({
        lock: true,
        text: '登录中,请稍后。。。',
        spinner: "el-icon-loading"
      });
      try {
        await this.$store.dispatch("LoginByUsername", this.loginForm)
      } catch (error) {
        this.refreshCode();
        throw error
      } finally {
        loading.close();
      }
      this.$router.push(this.tagWel);
    }
  }
};
</script>

<style>
</style>
